Results 51 to 60 of about 85,930 (332)

Evolutionary characteristics, influencing factors of livestock and poultry meat production in China and its future trends

open access: yesAnimal Research and One Health, EarlyView.
By reviewing the development history, this study summarizes the main factors and corresponding pathways that affect the evolution of meat production in China from both internal and external perspectives. Based on this, we predict future development trends.
Pengcheng Li   +6 more
wiley   +1 more source

Longitudinal links of negative student–teacher relationships and positive class climate with traditional bullying and cyberbullying perpetration

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The current study aimed to investigate whether negative student–teacher relationships and within‐class perceptions of the class climate at the individual level, and positive class climates at the classroom level in fifth grade, were associated with traditional bullying and cyberbullying perpetration 1 year later, in sixth grade, in a sample of
Robert Thornberg   +3 more
wiley   +1 more source

About the exact and asymptotic distribution of the Gini coefficient

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2010
In this paper we deal with the distribution of the Gini Concentration Index (G). We derive its exact sample distribution which is useful only for small sample sizes and basing on the classic results for L-statistics of Egorov and Nevronov we prove the ...
Pablo Martínez-Camblor, Norberto Corral
doaj   +1 more source

On the General Deviation Measure and the Gini coefficient

open access: yesInternational Journal of Economic Theory, 2023
AbstractThe General Deviation Measure introduces a progressive definition for financial risk measurement, which presents an alternative to the Coherent Risk Measure. This definition replaces the Translation Invariance and Monotonicity axioms with the Shift Invariance and Nonnegativity axioms, and it includes the Mean Absolute Deviation measure and ...
openaire   +1 more source

On Calculation of the Extended Gini Coefficient [PDF]

open access: yesReview of Income and Wealth, 2001
The conventional formula for estimating the extended Gini coefficient is a covariance formula provided by Lerman and Yitzhaki (1989). We suggest an alternative estimator, obtained by approximating the Lorenz curve by a series of linear segments. In a Monte Carlo experiment designed to assess the relative bias and efficiency of the two estimators, we ...
Duangkamon Chotikapanich   +1 more
openaire   +1 more source

Redefining the Economical Power of Nations [PDF]

open access: yes, 2013
This paper is (over the formulas) self explaining . The measurement of economies no longer by GDP alone, but by an Index that includes other important factors as well, a So-cial factors relativized GDP.
Kiss, Christian
core   +3 more sources

Toward an SDG‐Based Typology for US Nonprofits

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The Sustainable Development Goals (SDGs) represent an emerging institutional logic that nonprofits must navigate alongside existing sector‐specific frameworks. Drawing on institutional logics and organizational hybridity theories, we examine how nonprofits incorporate SDGs into their missions and what this reveals about managing institutional ...
Dominik S. Meier, Elizabeth Searing
wiley   +1 more source

The Gini Coefficient Reveals More [PDF]

open access: yes
We revisit the well-known decomposition of the Gini coefficient into betweengroups, within-groups and overlap terms in the context of two groups in which the incomes in one group may be scaled and that group’s population weight modified.
André Decoster, Peter J. Lambert
core   +3 more sources

Gini estimation under infinite variance [PDF]

open access: yes, 2017
We study the problems related to the estimation of the Gini index in presence of a fat-tailed data generating process, i.e. one in the stable distribution class with finite mean but infinite variance (i.e. with tail index $\alpha\in(1,2)$). We show that,
Cirillo, Pasquale   +2 more
core   +2 more sources

Analysis of Ruddlesden‐Popper and Dion‐Jacobson 2D Lead Halide Perovskites Through Integrated Experimental and Computational Analysis

open access: yesBattery Energy, Volume 4, Issue 2, March 2025.
Optimized ML framework for predicting RP and Dj phases in perovskite solar cells. ABSTRACT Two‐dimensional (2D) lead halide perovskites (LHPs) have captured a range of interest for the advancement of state‐of‐the‐art optoelectronic devices, highly efficient solar cells, next‐generation energy harvesting technologies owing to their hydrophobic nature ...
Basir Akbar, Kil To Chong, Hilal Tayara
wiley   +1 more source

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